Patents by Inventor David H. P. Shieh

David H. P. Shieh has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Phase change media compatible with air bearing flying head
    Patent number: 6106919
    Abstract: An phase change optical medium compatible with a flying head can include a substrate, a reflective layer, a first dielectric layer, a phase change information carrying layer, a second dielectric layer and a lubricant layer. The structure and materials used both protect the phase change layer from mechanical damage due to impact and from information-altering heat generated by impact.
    Type: Grant
    Filed: April 16, 1998
    Date of Patent: August 22, 2000
    Assignee: Digital Papyrus Corporation
    Inventors: Neville K. S. Lee, John S. Berg, David H. P. Shieh